Genie 34538S.S is a genuine OEM LHCG Limit Switch Assembly (138 inch) replacement part for Genie garage door openers. Dimensions: 138 inch lead length.
A: It is a magnetic down (close) limit switch assembly with a 138-inch wire lead, used to signal the opener when the door has reached the fully closed position.
A: It is compatible with PCG500ML, PCG700ML, PCG700FN, GCG350ML, H2000C, 1020L, 2020L, 350ML, 500ML, 700ML, and 800ML openers.
A: The 34538S.S uses brown/orange wire and installs at the door end of the rail as an external magnetic switch.
A: No. Both share the 138-inch lead length but are different generations or configurations and are not interchangeable.
A: The door will not stop reliably at the closed position, which can cause the opener motor to overrun, damage the door, or create a security gap. Replace the switch promptly.
